Hinge



May 20, 1952 J. w. PA'r'roN ET AL 2,597,174

HINGE Filed Aug. 18, 1948 Patented May 20, 1952 UNITED STATES PATENT YOFFICE Y HINGE u John W. Patton, Philadelphia, Pa., and Roger G.

Cudni, Birmingham, Mich.; said Patton assignor to American Car andFoundry Company, New York, N. Y., a corporation of New JerseyApplication August 18, 1948, Serial No. 474,884

s Cairns. (ci. ,ao-16) l This invention relates to hinges of the flushtype, particularly those intended for use on railway car end doors.

It is old in the art to provide doors having a rounded pivoting edgeconcentric with the axis of the hinges so that the space interveningbetween the pivoting edge of the door and the rabbeted or depressedportion of the door jamb when the door is opened will, regardless of thedoor position, be insufficient to permit the insertion of ngers andconsequent injury by rapid closing of the door due to acceleration ordeceleration.

An object of this invention is to provide a hinge structure capable ofbeing fastened to the outer surface of such a door and door jamb, yethaving no parts thereof projecting outwardly from its surface. Thisfeature is especially desirable, since projecting parts can causephysical injury to persons who may bump into them, and

their elimination provides flush or smooth surfaces which are more inkeeping with modern design.

The object of this invention is achieved by offsetting the pivotal axisof the hinge a distance from 'the edge of the door equal to the radiusof the rounded edge of the door and recessing the knuckles of the hingein the door, so that the knuckles project inwardly rather than outwardlyfrom the hinge plate surface.

Other objects and advantages of the invention will appear from thefollowing specification when read in connection with the accompanyingdrawings, in which:

Figure 1 is a front elevational view of the hinge;

Figure 2 is a fragmentary horizontal sectional view taken through a doorand door jamb above the hinge applied thereto with the door shown inclosed position.

Figure 3 is a view similar to Figure 2, but taken through the hingealong the line 3-3 of Figure l, and showing the door in an openposition.

Referring now more in detail to the drawings, the reference numeral Irefers to a door jamb formed with the conventional rabbeted or depressedportion 2. A door 3, having a rounded edge 4 seats in rabbeted portion2.

The hinge, generally indicated at 5, pivotally joins door 3 to door jambI. Hinge 5 includes a stationary leaf 6 xed to jamb I and a movable leaf1 fixed to the door 3 the leaves being formed with knuckles I4 and I8,respectively, substantially U-shaped in cross section and offsettherefrom, and a pintle 8 passing through said knuckles to pivotallyconnect leaves 6 and 1.

Stationary leaf 8 comprises a plate 9 of substantially rectangularshape, perforated as indicated at I0 toY receive fastening screws, andan extension II oifset inwardly from and parallel to the plate 9. Thevertical edge I2 of the offset extension II of leaf 6 is provided withspaced projecting portions I3, which are thickened intermediate theirlength to form the inwardly extending knuckles I4. Knuckles I4 areprovided with aligned cylindrical openings `I5 to receive pintle 8. Y

Movable leaf 1 consists essentially of a plate perforated andcountersunk as at 20 to receive screws. The vertical edge I6 of leaf 1is formed with spaced slots, or openings I1. Each portion of edge I6 ateither side and intermediate the length of these slots in leaf 1 isthickened to form the knuckles I8 which are provided also with alignedcylindrical openings I9 to receive the pivot pin 8.

In the assembled hinge, the abutting edges of leaves 6 and 1 intermeshwith each other, the slotted edge I6 of movable leaf 1 abutting thevertical edge I2 of extension Il. The projecting portions I3 ofextension II are adapted to fit into the openings I1 of movable leaf 1with the vertical edges 26 of projecting portions I3 abutting thevertical edges 21 of slots I1 to provide a substantially continuous andunbroken outer surface. In order to permit free relative movementbetween leaves 6 and 1 the edges I2 of extension II of leaf 6 arebeveled inwardly, while the abutting edges I6 of movable leaf 1 arebeveled outwardly, the edges 21, 26, respectively, of openings I1 andprojections I3 being correspondingly beveled. The leaves 6 and 1 arebeveled in this manner to close the gap that would otherwise necessarilybe left between them while permitting free relative movement, and alsoto prevent opening movement of the hinge in more than one direction.

The hinge pin 8 passes through the registered aligned cylindricalopenings I5 and I9 of knuckles I4 and I8, respectively, and cooperateswith said knuckles to form a pivot element joining the movable andstationary leaves of the hinge. Thickened end portions 23 of pintle 8,of relatively greater diameter than pintle 8 abut against the upper andlower horizontal surfaces, respectively, of the upper and lower knucklesI8, to retain pintle 8 in the aligned cylindrical openings I5 and I 9.

A vertical U or channel-shaped recess 2I is provided in door 3, toaccommodate the aligned knuckles I4 and I8 of leaves 6 and 1. Horizontalrecesses 22 are provided to permit movement of the door with respect toprojecting portions I3 of stationary leaf 6. The recesses 22 extendinwardly from the outer surface of door 3 and are shaped to provide astop portion 23 engageable withlzprojections i3 to limit opening.vmovement of door' 3L The upper and lower-edges of' the recesses 22 areat the same levels as the upper and lower edges of openings II ofmovable leaf '1. The minimum radius of the vertical Wall of re. cesses22 is equal to the horizontal distance of the free edge ofprojectingportions I3 fromflthe center of pivot pin 8.

The stationary leaf 6 `and@movablelleaf .lare respectively secured tojamb and 'door 3,1" by screws 24, as indicated in-Figuresflzand 3.

A rubber bead 25 is secured vertically in the rabbeted portion 2 of thedoor jamb, as 'shown in Figures 2 and 3, andforms a seal between thedoor 3 and- Yjambfl fora-the ydual purpose of rei ducing vibration ofthedoor andV insulating the carinterior. fRubberfbead 25 abuts therounded 'edge 4 of door 3;-fwhich,.asheretofore indicated,

isvconc'entric:withthepivoting axis of the door,

f so'ftha't bead 25 in contact with therOunded f zedged offthe)doorzregardless of -the :degree to which the door-'may be'opened.

Y'--The'hin'g`e :functions as follows:- When the door Vvis'closed;aSshOWnin--Figure 2, theleaves'li and 1 provide a continuous,substantially hat,l -unbroken outer-surfacef-the1 outwardlyv` beveledslotted vertical@ edge ofileaf'l abutting-'them- HfwardlyLbeveled-vertical-.edge of extension I I, -and l 'the outwardly :beveledends of rprojections I3 -2 abutting the :inwardly beveled endsr of'Aopenings y |15.: As--theA door is opene'd-,leaf 6,2- being-'securedbyscrews-24 to the-router face of-the `door-jamb, -f remainsunmovedywhereas leaf 1, being secured to the door 3, will pivot aboutpin -8 in accord- 1 lance With'vthedegree of movement ofdoor 3. AS -fleaf 1 pivots about-#piuu 8,;the abutting Vbeveled f s-edges of theleaves arefseparated-and projecting s portions i3 ofithe-stationary'leaf-.6 extend into Avvrecess 22 'of\door 3,`i'nfwhich'they are free to roy i -tateuntildoor 3freaches its vmaximum-.open posi-A. fwtion at which-pointhfurther-movement ofthe Y door 13 -is prevented-by-Athe ffengagement offstop portions 23fv-fwithr the-p-rojectionsr I3.

- -The-finvention-may befrnodied in various re- 4 Ispects as will-.occurto those skilled in thefart .-"andfthev-exclusive use offmodications ascome ffwithirr the 'scope of the appendedclaimsis contemplated. i v-VWhatis claimed is:

l. In combination with l`a J door havinga substantially-U-shapedvertical recess formed therein adjacent-one edge andsegment-shaped re- Y cesses mergingwith the..U -shaped recess, ahinge 4U-shaped vertically aligned knuckles formed on and offset from theunexposed faces of said intermeshing projecting portions, meanspivotally connecting said offset aligned knuckles, said offset 5 alignedknuckles being received in said U-shaped *vertical recess in the'doorfwhenthfe hinge is ap- Xplied in place'andls'aidprojectingnportions of the hinge leaf secured to the jambtraversing the i segment-shaped vertical recesses in the door when thelatter is opened, and a stop formed in said segment-shaped recessengageable by said 1 last-named' projecting portions of the hinge tolimitopening movement of the door. 2; III-.combination with a doorincluding a sub- 115f1stantiallyU-shaped vertical recess formed therein,a hinge for` connecting the door with an adjacent jamb comprising, apair of leaves secured f to the outer faces of the door and jamb andhaving spaced apart projecting portions intermeshzogingwithzeachother,substantiallyU-shaped ver- Y ticallygaligned knucklesv formed on i andoffset inwardly from the unexposedfxfaces of saidinterf A:meshingprojecting hinge #leaf-fportions` and Jr: adapted to t intotheU-shapedfvertical recess inthe Ydoor when the hinge is: applied inopera- Y.: '.tivef position, and means pivotally-'connecting said ioiset Valigned knuckles', the .exposeduface's of said iurpair oihingeleaves cooperating to form a sub- I.".ustantiallyA at unbroken surfacewhencthe rdoor 1^ islclos'ed.

f B; Incombination with adoorincludinga subistantiallyU-sh'apedzventical recess formed therein," a hingeforrconnecting thedoorwith anzadjaf oentfjamb comprising, a .pair off leaves: securedto-'the outerifacesV ofthe door.= and jambr'and Shaving Lspacedl :apartprojectingportionszinterf: i meshing with'eaoh omen-substantiallyU-shaped 'vertically :aligned knucklesffformed on and 'offset :inwardlyfromSthefunexposedifaces of saidfin- 40 termeshing projecting hingeleaf: portions; and adapted to nt into the U-shaped vertical-.recessin'thedoo'r. AWhenlthe hinge is .applied inopera- Jltive;4 position,:andfmeans pivoltally.-i connecting 'said'offset aligned-knuckles, the.labutting: vertical edges of r'said i leaves rand. saidxspa'ced: apartin- Y ftermeshing projecting portions being 'correspond--Q-inglyLbeVeIed to Sprevent=fopeningfl movement of the door in more'thanione. direction.

The following references are of record inY the riile of .this patent:

" 'UNITED 'STATESl'PATENTS Number Name Date 1,404,498 AWallace, ';Jra;n.24,1922 l11,893,450 1 Shively ;'Jan. '3, .1933 2;067,56l Clarke Y..;Jan; 12,193'7 Shih=Liong Ma 1July. 27, -1937

